EP 2852736 B1 20170823 - AIRFOIL MATEFACE SEALING
Title (en)
AIRFOIL MATEFACE SEALING
Title (de)
STECKSEITENABDICHTUNG BEI EINEM FLÜGEL
Title (fr)
ETANCHÉITÉ DE SURFACE D'ACCOUPLEMENT DE PROFIL AÉRODYNAMIQUE
Publication
Application
Priority
- US 201213477765 A 20120522
- US 2013041841 W 20130520
Abstract (en)
[origin: US2013315745A1] An airfoil includes an airfoil working portion and an adjoining endwall. The endwall has a leading edge, a trailing edge, a first mateface, and a second mateface that collectively define a perimeter of the endwall, with the first and second matefaces arranged opposite one another. A forward zone is defined by the endwall that extends to the leading edge. The first and second matefaces are each oriented at an angle alphaII relative to radial in the forward zone. An aft zone is defined by the endwall that extends to the trailing edge. The first and second matefaces are each oriented at an angle alphaII relative to radial in the aft zone. The angles alphaII and alphaII are not equal. A middle zone is defined in between the forward and aft zones, and the first and second matefaces transition between the angles alphaII and alphaI in the middle zone.
IPC 8 full level
F01D 11/00 (2006.01); F01D 5/00 (2006.01); F01D 5/14 (2006.01); F02C 7/00 (2006.01); F02C 7/28 (2006.01)
CPC (source: EP US)
F01D 5/141 (2013.01 - US); F01D 5/143 (2013.01 - EP); F01D 11/006 (2013.01 - EP US); F05D 2240/80 (2013.01 - EP US); Y02T 50/60 (2013.01 - EP US); Y10T 29/49316 (2015.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2013315745 A1 20131128; EP 2852736 A1 20150401; EP 2852736 A4 20160413; EP 2852736 B1 20170823; WO 2013177050 A1 20131128
DOCDB simple family (application)
US 201213477765 A 20120522; EP 13793253 A 20130520; US 2013041841 W 20130520